| phosphatidylinositol 4-phosphate | <biochemistry> The intermediate in the biosynthesis of phosphatidylinositol 4,5-bisphosphate from phosphatidylinositol. (20 Sep 2002) |
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| phosphatidylinositol 4-phosphate phosphatase | <enzyme> From human erythrocyte membranes Registry number: EC 3.1.3.- Synonym: ptdins-4p-phosphatase, phosphatidylinositol-4-phosphate monoesterase, ptdins4p monoesterase (26 Jun 1999) |
| phosphatidylinositol phosphates | <biochemistry> Phosphatidylinositols in which one or more alcohol group of the inositol has been substituted with a phosphate group. (12 Dec 1998) |
| phosphatidylinositol synthase | <enzyme> An enzyme that catalyses the reaction of CDP-diacylglycerol with inositol to form CMP and phosphatidylinositol; found in the endoplasmic reticulum. (20 Sep 2002) |
| phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase | <enzyme> Hydrolyzes the 5-position phosphate of ptdins(3,4,5)p3 forming phosphatidylinositol-3,4-bisphosphate; an isoenzyme forms a complex with the p85/p110 form of pi 3-kinase Registry number: EC 3.1.3.- Synonym: ptdins(3,4,5)p3 5-phosphatase, pi(3,4,5)p3 5-pase (26 Jun 1999) |
| phosphatidylinositol-3-phosphatase | <enzyme> Hydrolyzes phosphatidylinositol 3-phosphate in nih 3t3 cells; specific as it has little or no activity on the monoester phosphates of ptdins(4)p, ptdins(4,5)p2, or inositol 1,3-bisphosphate; does not require added metal ions for activity and is maximally active in the presence of edta; inhibited by ca(2+), mg(2+),zn(2+), and the phosphatase inhibitor vo(3-)4 Registry number: EC 3.1.3.64 Synonym: phosphatidylinositol 3-phosphatase (26 Jun 1999) |
| phosphatidylinositol-ceramide phosphoinositol transferase | <enzyme> Involved in biosynthesis of inositol-containing sphingolipids; isolated from saccharomyces cerevisiae Registry number: EC 2.4.1.- Synonym: ipc synthase (26 Jun 1999) |
| phosphatidylinositols | <biochemistry> Derivatives of phosphatidic acids in which the phosphoric acid is bound in ester linkage to the hexahydroxy alcohol, myo-inositol. Complete hydrolysis yields 1 mole of glycerol, phosphoric acid, myo-inositol, and 2 moles of fatty acids. (12 Dec 1998) |
| phosphatidylserine | <biochemistry> The condensation product of phosphatidic acid and serine, found in biomembranes. It is an important minor species of phospholipid in membranes. Serine is attached to phosphatidic acid by a phosphodiester linkage. Complete hydrolysis yields 1 mole of glycerol, phosphoric acid and serine and 2 moles of fatty acids. Synthesis is from phosphatidylethanolamine by exchange of ethanolamine for serine. Distribution is asymmetric, as the molecule is only present on the cytoplasmic side of cellular membranes. It is negatively charged at physiological pH and interacts with divalent cations, involved in calcium dependent interactions of proteins with membranes (e.g. Protein kinase C). See: cephalin. (20 Sep 2002) |
| phosphaturia | <nephrology> The excessive discharge of phosphates in the urine. Origin: NL. See Phosphate, and Urine. (01 Mar 1998) |
| phosphene | <ophthalmology, physiology> Visual sensations arising from mechanical stimulation by pressure upon the eyeball when the lids are closed. It can also be produced by electrical stimulation of the eyeball. It is a luminous impression produced through excitation of the retina by some cause other than the impingement upon it of rays of light. Origin: Gr. Light + to show. (20 Sep 2002) |
| phosphide | <chemistry> A binary compound of phosphorus. Source: Websters Dictionary (01 Mar 1998) |
| phosphine | <chemistry> A colourless gas, PH3, analogous to ammonia, and having a disagreeable odour resembling that of garlic. Synonym: hydrogen phosphide, and formerly, phosphureted hydrogen. It is the most important compound of phosphorus and hydrogen, and is produced by the action of caustic potash on phosphorus. It is spontaneously inflammable, owing to impurities, and in burning produces peculiar vortical rings of smoke. Source: Websters Dictionary (01 Mar 1998) |
| phosphines | Inorganic or organic compounds derived from phosphine (ph3) by the replacement of h atoms. (12 Dec 1998) |
| phosphinic | <chemistry> Pertaining to, or designating, certain acids analogous to the phosphonic acids, but containing two hydrocarbon radicals, and derived from the secondary phosphines by oxidation. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Phosphofructo-1-kinase Isozyme A, Phosphofructokinase 1, Muscle Type
Synonyms : Phosphofructo-1-kinase Isozyme C, Phosphofructokinase 1, Type C
Synonyms : 6-PF-2-K-Fru-2, 6-P(2)ase, 6-Phosphofructo 2-kinase-fructose 2, 6-bisphosphatase, 6PF2K, ATP-D-Fructose-6-phosphate 2-phosphotransferase, F Kinase-F-bisphosphatase, Fru-6-P, 2-kinase, Fru-kinase-Fru-bisphosphatase, Fructose 2, 6-bisphosphatase
Synonyms :
Synonyms : Phosphomutase, Glucose
| phonic |
pertaining to the phonic method of teaching reading relating to speech phonetic: of or relating to speech sounds; "phonetic transcription"
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| photon |
a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
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| phon |
a unit of subjective loudness
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| phonogram |
any written symbol standing for a sound or syllable or morpheme or word
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| phonograph |
record player: machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically
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| PHO | a salt of phosphoric acid |
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| PHO | a solution containing a phosphate buffer |
| PHO | a colorless gas with a strong fishy smell |
| PHO | an organic compound of creatine and phosphoric acid |
| PHO | any of various compounds composed of fatty acids and phosphoric acid and a nitrogenous base |
| PHO | containing chemically bound phosphoric acid |
| PHO | a corrosion-resistant bronze containing phosphorus |
| PHO | to exhibit phosphorescence |
| PHO | a fluorescence that persists after the bombarding radiation has ceased |
| PHO | emitting light without appreciable heat as by slow oxidation of phosphorous |
| PHO | containing or characteristic of phosphorus |
| PHO | an acid used in fertilizers and soaps: H3PO4 |